Spring support for chairs, couches, and the like



A. H. SALMON SPRING SUPPORT FOR CHAIRS', COUCHES, ANUTHELIKE Filed March31, 1926 5 Sheets-Sheet 1 lllll f DecN 1s, 192s. 1,696,125

A. H. SAL-MON SPRING SUPPORT FOR CHAIRS, COUCHBS, .AND THE LIKE medMaron 51. '192s s sheets-sheet 2 V U--v WOJ Dec. 18, 1928.

A. H. SALMON SPRING SUPPORT FOR CHAIRS, COUCHES, AND THE LIK Filed March3l. 1926 I5 Sheets-Shet Patented Dec. 18, 1928.

UNITED STATES vPATsN'r olv-"FICE,

SPRING SUPPORT FOR CHAIRS, COUCHES, AND lTHE LIKE. i

Application led March 31, 1926, Serial No. 98,894, and in Great BritainMay 25, 1925.

This invention relates to spring supports for chairs, couches, omnibusesand other vehicle seats and the like and it has for its object toobviate the usual upholstery or internal seat springs.

The present invention consists broadly of a chair, couch or the likecomposed of two frames, one frame carrying the seat and being mountedupon springs interposed botween the two frames whereby the upper frameis free to move in a resilient manner relatively to the other orunder-frame.

The preferred spring support according to the present invention consistsof or comprises a plurality of conical coiled compression springsarranged so as to constitute the sole supporting means for the upper orseat frame;

In the preferred arrangement the springs are arranged intandem fashionin two sets oneach side of the chair or the like., the rear setconsisting of two or more springs and the front set consisting of One ormore springs of heavier gauge material or otherwise rendered stifferthan the springs of the rear'set.

IVhile conical coiled springs as the support for the upper frame of thearticle such frame` is permitted to give in all directions under theweight of the user whilst completely or almost completely obviating anytendency for the upper frame and consequently the seat to roll owing tothe lateral stability imparted by springs of this type.

In order that the invention may be clearly understood two embodiments ofthe same will now be described by aid of the accompanying drawings inwhich Fig. 1 is a. fragmentary erspective view of an armchair embodyingt 1e improvements according to the present invention.

Fig. 2 is a longitudinal vertical section through the same.

Fig. 3 is a. plan view.

Fig. 4 is an elevation of the detachable and ad'ustable back.

1ig. 5 is a fragmentary longitudinal vertical section through a chairhaving springs of the leaf or laminated type.

The chair illustrated com rises a. rectangular frame a supported on egsb and form-V ing the base for the chair, such frame being hereafterreferred to as the base frame. The portion c hereafter referred togenerallyV as the body of the chair, is supported, in the exampleillustrated in Figs. l to 4, upon slx conical coiled springs, three ofwhich d, e and f are shown in the drawings.v These springs are arrangedtandem fashion on oir posite sides of the chair with ltheir largestdiameter adjacent to the underside of the body of the chair c.

In the preferred arrangement which is illustratedl the springs arearranged in two sets, therea-r set consisting of the springs d and e andthe front set of the spring f. The front springs f are composed vofheavier gauge material vor otherwise rendered stiffer than the springs(l and e. i

To render the springs normally invisible v the body of the chair isprovided all round with a depending' skirt g.

In the example illustrated in Fig. 5 lami-Y nated springs l1, are usedin lieu of the conical coiled springs d and e f of the irst describedexample. f

Alternativel)7 ordinary used.

The conical coiled springs are however preferred as they give in alldirections under the weight of the user of the chair whilst co pletelyor almost completely obviating any tendency for the body of the chair toroll owing to the lateral stability imparted by springs of this type.

A chair having a spring support accord# ing to this invention does notrequire any upholstery springs and the seat proper may be composed of astrip of material stretched between the back and front transversemembers of the seat frame. y

lVhat I claim and desire to secure ters Patent is A chair comprising anintegral understructure including side'rails and end rails, an inte-graloverstructure including seat and back, a. set of conical coil springsarranged tandem fashion on each side rail 0f said under-structure vwiththeir smallerends rest ing on said side rail and their larger endssupporting said over-structure,A the springs supporting the front end ofsaid over-structure being less in number but of `heavier gauge thanthose supporting the rear end of said over-structure and the severalsprings of the two sets constituting the sole means for limitingrelative movement between said two structures in a horizontal'sense inall die rections.

In witness whereof I aiiix my signature.

ALBERT HARRY SALMON. p

by Letcoil springs may be

